calculate the derivative in matlab

main.m
% Define a function
syms x
f = x^2 + 2*x + 1;

% Calculate the derivative
dfdx = diff(f)

% Convert symbolic function to MATLAB function
f = matlabFunction(f);
dfdx = matlabFunction(dfdx);

% Evaluate the function and its derivative at x=2
x = 2;
f(x)
dfdx(x)
260 chars
16 lines

main.m
dfdx =
 
2*x + 2

ans =
 
9

ans =
 
6
39 chars
12 lines